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How a ‘Solar Battery’ Could Bring Electricity to Rural Areas

           

New solar flow battery with a 14.1 percent efficiency. Photo: David Tenenbaum, UW-Madison

CLICK HERE - STUDY - Chem - 14.1% Efficient Monolithically Integrated Solar Flow Battery

theverge.com - by Angela Chen - September 27, 2018

Solar energy is becoming more and more popular as prices drop, yet a home powered by the Sun isn’t free from the grid because solar panels don’t store energy for later. Now, researchers have refined a device that can both harvest and store solar energy, and they hope it will one day bring electricity to rural and underdeveloped areas.

The problem of energy storage has led to many creative solutions, like giant batteries. For a paper published today in the journal Chem, scientists trying to improve the solar cells themselves developed an integrated battery that works in three different ways.

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How Storms, Missteps and an Ailing Grid Left Puerto Rico in the Dark

           

A transmission tower and downed lines in the mountainous terrain of eastern Puerto Rico. Workers from the island and throughout the United States have worked to restore power after Hurricanes Irma and Maria last September.

It took months to restore electricity in Puerto Rico after hurricanes dealt a one-two punch. Many homes are still without power, and the system’s future is far from certain.

nytimes.com - by JAMES GLANZ and FRANCES ROBLES - Photographs by TODD HEISLER - May 6, 2018

 . . . After Maria and the hurricane that preceded it, called Irma, Puerto Rico all but slipped from the modern era . . .

 . . . an examination of the power grid’s reconstruction — based on a review of hundreds of documents and interviews with dozens of public officials, utility experts and citizens across the island — shows how a series of decisions by federal and Puerto Rican authorities together sent the effort reeling on a course that would take months to correct. The human and economic damage wrought by all that time without power may be irreparable.

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Re-energizing the Island: Power in Puerto Rico

                                                    CLICK ON THE IMAGE BELOW TO ENLARGE

           

http://fingfx.thomsonreuters.com/gfx/rngs/USA-PUERTORICO-POWER/010051M33MM/USA-PUERTORICO.jpg

The primary transmission lines that criss-cross Puerto Rico are steadily coming back online following Hurricane Maria, with several different contractors responsible for bringing back power.  The island lost all of its power after the storm; it still has a goal to restore 95 percent of power by the middle of December.

Sources: Puerto Rico Electric Power Authority; company reports

C Chan, S DiSavino 6/11/2017

ALSO SEE RELATED ARTICLE HERE - New Puerto Rico utility head, same old challenges

 

 

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Puerto Rico Energy Commission Opens Docket on Microgrids and Distributed Generation

Puerto Rico Gov. Ricardo Rosselló Nevares testifying on Capitol Hill this week.

microgridknowledge.com - by Elisa Wood - November 17, 2017

Puerto Rico’s energy commission has opened a docket to investigate ways to encourage microgrids and distributed generation to build an energy system with more fortitude against hurricanes.

Island officials described the docket this week in testimony before the U.S. Senate Committee on Energy and Natural Resources. Half of the island’s population remains without power two months after Hurricane Maria’s strike.

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Hurricane Maria Has Made Puerto Rico the Land of Opportunity for Solar Power

           

Leaning on the lines.(Raquel Pérez Puig for Quartz)

qz.com - by Ana Campoy - November 11, 2017

San Juan, Puerto Rico

Seven weeks after hurricane Maria, the traffic lights are still down in San Juan. The narrow, cobbled streets of the city’s historic center, one of the island’s top tourist attractions, turn pitch black as soon as the sun sets. With appliances useless during the blackout, many of the city’s residents can’t cook, store food, or take a real shower.

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Power Line Fails; Darkness Returns to San Juan

           

A main power line failed Thursday in Puerto Rico, plunging several cities, including San Juan, into darkness. Dennis M. Rivera Pichardo for The New York Times

nytimes.com - by Frances Robles - November 10, 2017

SAN JUAN, P.R. — A main power line that serves the northern half of Puerto Rico failed Thursday, knocking out electricity to seven cities that had only recently regained service and dealing a major setback to the island’s desperate efforts to regain normality.

Seven weeks after Hurricane Maria completely disabled Puerto Rico’s power grid, the island was generating just 18 percent of its electrical capacity, returning service to where it had been two and half weeks ago. On Thursday morning, the island had been at about 43.2 percent of capacity.

The disruption also me ant that many people no longer had running water, because pumping stations are powered by electricity.

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Puerto Rico's Storm of Misery

       
 
Devastation in Puerto Rico - CBS News
 
cbsnews.com - by Steve Kroft - November 5, 2017
 
Many Puerto Ricans have endured the longest blackout in American history following a direct hit from Hurricane Maria. Due to a multitude of factors, some say the lights won't be coming back on anytime soon.
 
It's safe to say that of all the places in the country, the one that is suffering the most right now is the hurricane-ravaged island of Puerto Rico . . . For the past 46 days, most of them have been without power, the longest blackout in American history. FEMA says it has distributed more food and water there than any disaster its ever been involved in.
 
 
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US Lawmakers Investigate Firm's Contract to Help Restore Puerto Rico's Power

       

Workers from Montana-based Whitefish Energy Holdings help fix Puerto Rico’s power grid. Photograph: Alvin Baez/Reuters

CLICK HERE - NPR - Here's What's In That $300 Million Whitefish Contract

Multiple congressional committees seek information on $300m deal awarded to Whitefish Energy Holdings, tiny company in interior secretary’s hometown

theguardian.com - October 26, 2017

Multiple congressional committees are investigating a $300m contract awarded to a small Montana company in the hometown of the interior secretary, Ryan Zinke, that was tapped to help restore Puerto Rico’s damaged power grid.

The Puerto Rico Electric Power Authority awarded the contract to tiny Whitefish Energy Holdings to restore transmission and distribution lines damaged or destroyed during Hurricane Maria. The two-year-old company had just two full-time employees when the storm hit last month.

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In Puerto Rico, No Power Means No Telecommunications

A car passes among dark homes as people wait for electricity to be restored after Hurricane Maria passed through in Utuado, Puerto Rico.JOE RAEDLE/GETTY IMAGES

Image: A car passes among dark homes as people wait for electricity to be restored after Hurricane Maria passed through in Utuado, Puerto Rico.JOE RAEDLE/GETTY IMAGES

wired.com - Adam Rogers - October 10th 2017

Nearly three weeks after Hurricane Maria tore through the Caribbean, Puerto Rico is still mostly an island deleted from the present and pushed back a century or so—with little clean water, little electric power, and almost no telecommunications. For telecom, the biggest problem is the lack of power, because most of the island’s transmission lines were knocked out. “We have to reconstruct the power grid as if we were dropping into the middle of the desert and starting from scratch,” says Luis Romero, vice president of the Puerto Rico Telecommunications Alliance.

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